126=3(12+3n)

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Solution for 126=3(12+3n) equation: 



126=3(12+3n)

We move all terms to the left:

126-(3(12+3n))=0

We add all the numbers together, and all the variables

-(3(3n+12))+126=0



We calculate terms in parentheses: -(3(3n+12)), so:

3(3n+12)

We multiply parentheses

9n+36

Back to the equation:

-(9n+36)



We get rid of parentheses

-9n-36+126=0

We add all the numbers together, and all the variables

-9n+90=0

We move all terms containing n to the left, all other terms to the right

-9n=-90

n=-90/-9

n=+10

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